The Thomas R. and Anna Fay Williams AAVSO Archives
These data are formally published for the years 1900 to 2008. For a description of this data set, please click here.
Note: A separate page exists for the data including unpublished times of maxima. Go here for the current data set including the most recent data (through February of the current year).
Stars with maxima and minima data are as follows:
Long-term observations of long period variable stars are essential to the determination of period, change in period, change in behavior resulting from mass loss and/or evolution, mode of pulsation (fundamental or overtone), internal structure, and phase at specific times for these stars.
Schedule and video coming soon.
wishes to honor
on this, the thirtieth anniversary of her Directorship of the Association.
by Janet A. Mattei, AAVSO Director 1973-2004, published in Eyepiece Views, September 2002.
How have you made your "friendship" with variable stars? Has it been through your observing? Or through your reading? Or through your training?